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Gmat prerp problem

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by yass » Thu Oct 04, 2007 10:20 am
I agree with guest.
If you plug numbers, it will start making sense.
x = - 2

sqrt (-(-2)*|-2|) = sqrt (2 * 2) = sqrt (4) = 2
2 is our x (in our example : -2) multiple by -1, so the answer is -x.
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by gabriel » Thu Oct 04, 2007 10:35 am
https://www.beatthegmat.com/viewtopic.php?t=5392

cheers ..
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